Abstract
Image event recognition is different from object recognition, behaviour recognition and scene recognition. Event is a more advanced concept than object, behaviour and scene. Regarding semantics loss in image event recognition, this paper first proposes a WordNet-based optimization algorithm for concept semantics similarity and describes the semantics relations between different concepts by taking account of such following four impact factors in the WordNet tree as concept semantics distance, concept node depth, concept node density and concept semantics overlap ratio. On that basis, an image event recognition algorithm (CS-IER) based on concept score is proposed, while multi-view learning is applied to fuse concept score and inter-conceptual semantics relations. However, if a higher erroneous concept score is given using CNN, multi-view learning will also augment the concept score approximate to its erroneous concept semantics, thereby leading to the distortion of image representation information. To address this problem, CNN is used to extract channel information to obtain the local features of the image, and it is further fused with the optimized concept score features, so as to form the final image representation information and complete the image event recognition. In experiments, the effectiveness of the proposed algorithm on three datasets is verified.
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